Improvement in sash-fasteners



A. ISKE.

Sash-Fasteners.

N0,148,82 Patented March 24.1874;

INVENTOR' Unrrnn S'rarns PATENT QFFICE.

ANTHONY ISKl hOF LANCASTER, PENNSYLVANIA, ASSIGNOR TO MATHIAS OTTO, OF SAME PLACE.

IIMPRDVEMENT IN SASH-FASTENERS.

Specification forming part of Letters Patent No. 148,828, dated March 24, 1874; application filed January 29, 1874.

To all whom it may concern:

Be it known that I, ANTHONY ISKE, of the city of Lancaster, in the State of Pennsylvania, have invented certain Improvements for Locking Window-Sash, of which the following is a specification This invention relates to a numerous class of inventions for the purpose of either jointly locking the upper and lower sash of a window, or the upper sash lowered down for ventilation a certain distance and locked to prevent it from being pushed farther down from the outside.

The novelty in this consists in the automatic action of the upper lock, operated by the motions of the lower sash with its locking attachment, when raised and lowered through the construction and arrangement of the parts.

The accompanying drawings illustrate the construction and application of my invention, which, with the letters of reference marked thereon, and a brief description, will enable any one skilled in the art to make and use the same.

Figure 1 is a perspective view of an ordinary window-fram e, with the upper and lower sash and appliances in place. Fig. 2 is an enlarged detached view of the device employed. Figs. 3 and at show simple modifications of the parts shown in Figs. 1 and 2.

In Fig. 1, a combined lifter and hooked latch, K,having a central spring-chamber, is shown attached centrally to the lower rail of the sash B. On the sill S of the window there is a slotted catch-plate, L, to receive the hook on the latch, and in which it is held in place by the springaction in the case, so that the lower sash B is firmly locked to the sill S. 011 the top of the upper rail of the lower sash, near to the inside of the window-frame A, there is a plate, I, affixed, having its outer end bent up at 5, which projects so as to come in contact and act upon the automatic lever F by pressing its foot portion G outward. This horizontal foot portion G G, with its arm F, is held by a pivot, f, on a supporting-plate, E, which latter is firmly connected to the dividing-strip 1) between the upper and lower sash, boxed out for the foot G, to admit the action of the lever. This foot part G has on its outer face a bolt-lug, H,

(shown by Fig. 2,) rounded on its outer face, which is forced into a notch, M, cut out or into the upper sash O. A series of such notches, forming an ordinary rack, may be made. This forcing in is performed by the plate I c', affixed on the top rail of the sash B aforesaid, and held in that position so long as the lower sash is down, and consequently also locked, by the spring-catch and lifter K, to the sill. The upper end of the arm of the lever F now projects beyond the connecting-plate E.

In order to raise or lower the upper sash, it is necessary first to unlatch the lower sash and raise it sufficiently to press the projecting end of the lever F outward above the pivot f, which consequently draws the foot G G, with its boltlug H, inward out of the notch, when the upper sash can be moved up or down freely, and by simply pulling down the lower sash, the upper will be locked at any desired point provided with a notch. The application of this device also effectually prevents rattling of the sash. Thus air can be admitted into the room, and yet no one from the outside can lower the same, which gives security as well as ventilation by a very simple arrangement of parts, easily attached at a trifling cost, and readily operated.

I may mention that in case the notches in the upper sash are not desirable, since this device can be put to any ordinary window, I find by simply cutting off that outer foot part G of the lever having the bolt-lug H on it and using headed nails M m, driven into the inner face of the side rail of the upper sash C at such points desirous to lock the same, the lever F, Fig. 3, actuated in like manner, will have its foot-plate G pressed out under the head M of the nail; and then, to prevent the same from being lowered, a nail at the bottom and one or more above will answer every purpose, but it is not deemed equal to the notches, since they are out of sight, and not exposed as the headed pins or nails, however ornamental.

I also show, by Fig. 4, the proper spring-latch with a lifting-hook, K, in place of the knob shown in Fig. l, and the catch or case L can be inserted into the sill flush with the top, and nothing will show but an ordinary sash-lifter, which may be made highly ornamental.

'I am fully aware that there areniimerous deand supporting'plate E by the joint action of vices for fastening window-sash, but I am not the plate It and lower sash B, having its comaware that an automatic lever, actuated by bined latch and lifter K and sill-plate L, the

raising and lowering the under sash, has ever Whole constructed and operated substantially been combined and arranged or operated subin the manner and for the purpose set forth.

stantially in the manner and for the purpose ,T T specified. Therefore, AATHONX ISKE' What I claim as my invention is itnesses: The combination of the lever F, having afoot- JNO. M. AMWE G, plate, G, automatically operated on its-pivot f J A0013 STAUFFER. 

